You can adjust the view of your design with your fingers or the Orientation Cube.
- Rotate the view
You can tap anywhere on the screen with one finger and rotate around the point. If you want to view all sides of a body, tap inside of the body and start dragging your finger around the screen.
Or, you can rotate the view with two fingers. You need to turn on Allow two-finger rotation in Settings or Orientation Cube > Appearance to use this feature. Then, you can tap the screen with two fingers and rotate around the axis you created with your two fingers.
- Pan the view
Tap the screen with two fingers and slide simultaneously in the same direction.
- Zoom in and out
Tap the screen with two fingers and move them apart to zoom in. Then, pinch together your fingers to zoom out.
In addition to using the tricks above, you can also control the view from Views/Appearance and Orientation Cube.
You can tap 
to open Views/Appearance. In the Views tab, you can select different camera views:
- Top
- Bottom
- Front
- Back
- Right
- Left
If you double-tap the Orientation Cube, your grid is reset to its default state, and all your geometries are shown to fit the screen. 
If you double tap with your finger on the grid, face, or closed sketch, you can jump into an orthographic (2D) view. 